There are several companies competing to be the leader in measuring influence, and many agencies and brands trying to figure out how useful those metrics are, and how to best incorporate them into their targeting and their campaigns. But what if, instead of measuring the influence of strangers and then trying to convert them into fans, you could do something even more effective: get people who are already fans, and give them the tools to become more influential.

That’s the idea behind Fanrank, a new Facebook app that rewards brands for spreading the word about your brand on Twitter and on Facebook. Read →